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| author | Takashi Iwai <tiwai@suse.de> | 2013-08-15 20:43:46 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2013-08-15 20:43:46 +0200 |
| commit | f85a6597a6ce33fe4f390744b2764b30aa7bfda8 (patch) | |
| tree | 9b923afc20e7d3a7e78f98d600fd7e6633b4265b /arch/powerpc/kernel/process.c | |
| parent | 140d37de62ffe8405282a1d6498f3b4099006384 (diff) | |
| parent | 44ffb69ec617f64cd83182e8b64d93b84758d636 (diff) | |
| download | linux-f85a6597a6ce33fe4f390744b2764b30aa7bfda8.tar.bz2 | |
Merge tag 'asoc-v3.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v3.11
A few driver specific fixes here plus one core fix for a memory
corruption issue in DAPM initialisation which could lead to crashes.
Diffstat (limited to 'arch/powerpc/kernel/process.c')
| -rw-r--r-- | arch/powerpc/kernel/process.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index c517dbe705fd..8083be20fe5e 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -600,6 +600,16 @@ struct task_struct *__switch_to(struct task_struct *prev, struct ppc64_tlb_batch *batch; #endif + /* Back up the TAR across context switches. + * Note that the TAR is not available for use in the kernel. (To + * provide this, the TAR should be backed up/restored on exception + * entry/exit instead, and be in pt_regs. FIXME, this should be in + * pt_regs anyway (for debug).) + * Save the TAR here before we do treclaim/trecheckpoint as these + * will change the TAR. + */ + save_tar(&prev->thread); + __switch_to_tm(prev); #ifdef CONFIG_SMP |